Granted Patent
Utility
US 5,569,807 · App. 07/877,336
Isoparaffin-olefin alkylation
Inventors:
Ronald G. Abbott, Bruce B. Randolph
Patented Case
View Patent ↗
Granted: Oct 29, 1996
Filed: May 1, 1992
Inventors
Ronald G. Abbott
Bruce B. Randolph
Assignee (at issue)
Phillips Petroleum Company
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.